How severe is CVE-2021-37203?

CVE-2021-37203 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability high.

Is CVE-2021-37203 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-37203?

CVE-2021-37203 primarily affects Siemens Nx 1980. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-37203?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-37203 published?

CVE-2021-37203 was published on 2021-09-14 and last updated on 2026-06-17.

CVE-2021-37203

CVE-2021-37203 is a high-severity vulnerability in Siemens Nx 1980 with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 7.1)
CVSS v2: 5.8
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Siemens Nx 1980
Published: 2021-09-14
Last modified: 2026-06-17

Description

A vulnerability has been identified in NX 1980 Series (All versions < V1984), Solid Edge SE2021 (All versions < SE2021MP8). The plmxmlAdapterIFC.dll contains an out-of-bounds read while parsing user supplied IFC files which could result in a read past the end of an allocated buffer. This could allow an attacker to cause a denial-of-service condition or read sensitive information from memory locations.

Frequently asked questions

What is CVE-2021-37203?: A vulnerability has been identified in NX 1980 Series (All versions < V1984), Solid Edge SE2021 (All versions < SE2021MP8). The plmxmlAdapterIFC.dll contains an out-of-bounds read while parsing user supplied IFC files which could result in a read past the end of an allocated buffer. This could allow an attacker to cause a denial-of-service condition or read sensitive information from memory locations.
How severe is CVE-2021-37203?: CVE-2021-37203 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability high.
Is CVE-2021-37203 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-37203?: CVE-2021-37203 primarily affects Siemens Nx 1980. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-37203?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-37203 published?: CVE-2021-37203 was published on 2021-09-14 and last updated on 2026-06-17.

References

Affected products (10)

cpe:2.3:a:siemens:nx_1980:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:solid_edge:*:*:*:*:*:*:*:*
cpe:2.3:a:siemens:solid_edge:se2021:-:*:*:*:*:*:*
cpe:2.3:a:siemens:solid_edge:se2021:maintenance_pack1:*:*:*:*:*:*
cpe:2.3:a:siemens:solid_edge:se2021:maintenance_pack2:*:*:*:*:*:*
cpe:2.3:a:siemens:solid_edge:se2021:maintenance_pack3:*:*:*:*:*:*
cpe:2.3:a:siemens:solid_edge:se2021:maintenance_pack4:*:*:*:*:*:*
cpe:2.3:a:siemens:solid_edge:se2021:maintenance_pack5:*:*:*:*:*:*
cpe:2.3:a:siemens:solid_edge:se2021:maintenance_pack6:*:*:*:*:*:*
cpe:2.3:a:siemens:solid_edge:se2021:maintenance_pack7:*:*:*:*:*:*

More vulnerabilities in Siemens Nx 1980

CVE-2021-37202 — High (CVSS 7.8): A vulnerability has been identified in NX 1980 Series (All versions < V1984), Solid Edge SE2021 (All versions <…

All CVEs affecting Siemens Nx 1980 →

Other CWE-125 (Out-of-bounds Read) vulnerabilities

CVE-2026-24826 — Critical (CVSS 10.0): Out-of-bounds Write, Divide By Zero, NULL Pointer Dereference, Use of Uninitialized Resource, Out-of-bounds Read,…
CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

Browse all CWE-125 (Out-of-bounds Read) vulnerabilities →